Home / 78,477.05-117,521.18-50,353.85

Finding the Fourth Proportional to 78,477.05, 117,521.18 and 50,353.85

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Solution

The fourth proportional to 78,477.05, 117,521.18 and 50,353.85 is: 75,406.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,477.05 : 117,521.18 = 50,353.85 : x
  2. Step 2: Convert to fraction form
    78,477.05/117,521.18 = 50,353.85/x
  3. Step 3: Cross multiply
    78,477.05x = 117,521.18 × 50,353.85
  4. Step 4: Simplify right side
    78,477.05x = 5,917,643,617.77
  5. Step 5: Solve for x
    x = 5,917,643,617.77/78,477.05
  6. Step 6: Final answer
    x = 75,406.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.